Outline

• Summary

  • there are many devices that can record ground movements.
• Devices that monitor faults
  • creep meters
    • used to detect horizontal

• Laser-Ranging Devices
  • Shoots laser beam out, so it can detect tiny movements on the way back from a laser reflector.
• Tiltmeters
  • Two bulbs connected by water tube, so when ground silts water inside build is not even
• Satellite Monitors
  • Uses radar to make images of faults
• Monitoring risks in the United States
  • Geologist determining earthquakes risk by finding where the active faults are and where past earthquakes have occured

Diagram